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3 years ago

Find the length of a photograph whose width is 10 inches and whole proportions are the same as a 5-inch by 8-inch photograph.

Mathematics

2 answers:

olganol [36]3 years ago

6 0

Answer:

length = 4

Step-by-step explanation:

if the width of 10 is the same as a 5 by 8 photographer u can set up a proportion.

10/5 = x/8

Naily [24]3 years ago

4 0

5 inch is the width, 8 inch is the length.

Find to scale between the two widths:

10 /5 = 2 the larger photo is 2 times larger,

Multiply the known length by 2:

8 x 2 = 16

The length would be 16

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How would I solve this?

snow_tiger [21]

Answer:

- $\frac{1}{2}$

Step-by-step explanation:

Given the 2 by 2 matrix

$\left[\begin{array}{ccc}a&b\\c&d\\\end{array}\right]$

The determinant = ad - bc

For the given matrix

a = $\frac{1}{2}$ , b = $\frac{\sqrt{3} }{2}$ , c = $\frac{\sqrt{3} }{2}$ , d = $\frac{1}{2}$ , thus

ad - bc = $\frac{1}{2}$ × $\frac{1}{2}$ - ( $\frac{\sqrt{3} }{2}$ × $\frac{\sqrt{3} }{2}$ ) = $\frac{1}{4}$ - $\frac{3}{4}$ = - $\frac{1}{2}$

4 0

3 years ago

A telescope is regularly priced at $180, but is on sale for 25% off. What is the price after the discount and 5% sales tax??????

sashaice [31]

100-25=75
100+5=105

180*0.75*1.05=141.75

final price is $141.75

4 0

3 years ago

A student measures the diameter of a small cylindrical object and gets the following readings: 4.32, 4.35, 4.31, 4.36, 4.37, 4.3

Keith_Richards [23]

Answer:

The average of the diameter readings is 4.34 cm.

Step-by-step explanation:

We are given the following data set(cm):

4.32, 4.35, 4.31, 4.36, 4.37, 4.34

Formula:

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{26.05}{6} = 4.34167 \approx 4.34$

Thus, the average of the diameter readings is 4.34 cm.

8 0

4 years ago

PLEASE SOMEONE DO THIS IM RUSHING SO BAD AND IM CRYING - GIVING BRAINLIEST!!!!!

LUCKY_DIMON [66]

Answer:

1.) $1.07

2.) $2.25

3.) $14.20

Step-by-step explanation:

1.) Toonie = 2 CAD

CAD = USD $1.57

$1.57 - $0.50 = $1.07 (USD)

2.) $2.75 - $5 = $2.25 (USD)

3.) $20 x 4 = 80

$80 - $65.80 = $14.20 (USD)

Hope this helped!

8 0

3 years ago

A rectangle has a width of 7.9 feet and a perimeter of 27.2 feet enter the length of the rectangle in decimal form

ch4aika [34]

The answer is 5.7. You subtract the perimeter by the width times two and divide that by the length

5 0

3 years ago